How to install Node Repl MCP in Windsurf

To install Node Repl MCP in Windsurf, paste the "node-repl-mcp" block into ~/.codeium/windsurf/mcp_config.json and refresh the MCP panel in Cascade.

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1
Open the MCP config
In Windsurf, open Settings, then Cascade, then MCP servers, and choose to view the raw config.

Add the server

Paste this into mcp_config.json:

{
  "mcpServers": {
    "node-repl-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@qwen-code/node-repl-mcp"
      ]
    }
  }
}

3
Refresh
Click refresh in the MCP panel. The server and its tools appear in Cascade.

Config file: ~/.codeium/windsurf/mcp_config.json

MCP servers run with your permissions. If Node Repl MCP needs an API key, add it under env in the config. Check its README.

Install Node Repl MCP in another app

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Questions

Does Node Repl MCP work in Windsurf?

Yes. Windsurf supports local and remote mcp servers, and Node Repl MCP installs with the steps above.

Node Repl MCP does not show up in Windsurf. What now?

Restart Windsurf fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.

Is Node Repl MCP safe?

It scores 94 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.

Open the MCP config

Add the server

Refresh

Install Node Repl MCP in another app

Questions